All lobbying filings

Thorn Run Partners

Thorn Run Partners filed a Q1 report for Interdigital, Inc. on April 18, 2026, reporting $80,000 in lobbying income.

Lobbying for Interdigital, Inc. · develops mobile technologies

As filed: THORN RUN PARTNERS for INTERDIGITAL, INC.

All filings by Thorn Run Partners · Everything Interdigital, Inc. has reported

Filing · LD-2 quarterly report Q1 report

Reporting period

1st Quarter 2026

Jan 1 - Mar 31 · Posted Apr 18, 2026

Income

$80,000

What the client paid this registrant for the period.

Client based in

District of Columbia

Official filing document

Lobbyists on this filing 3

STUART CHAPMAN

Previously held: Chief of Staff, Representative Carolyn McCarthy; Chief of Staff, Representative Zack Space; Press Secretary, Senator Jay Rockefeller; Press Secretary, Representative Barbara Lee
ALEX DELPIZZO

Previously held: Legislative Director/Legislative Asst, Rep. Ferguson; Staff Asst, House Transportation and Infrastructure Committee
JASON M ROSENSTOCK

Previously held: Legislative Counsel, Rep. Tom Lantos

A "covered position" is a government job the lobbyist held in the 20 years before registering, which the law requires them to name. See the revolving door for former members of Congress across all filings.

Government bodies contacted 2

The chambers, agencies and offices the filer named. It does not say who inside them was contacted, or when. Each name opens every filing that named the same body.

Lobbying activity 1

Legislation relating to the impact of patent reform on IP protections. Issues relating to patent reform. Issues relating to trade. Issues relating to 5G and 6G development.

Source: federal Lobbying Disclosure Act filing, reproduced as filed. Bills are parsed from the activity descriptions.